Before taking off and landing at night, crews will often dim the cabin lights and ask passengers to open their shades.

在晚上起飞过降落的时候，乘务员会把机舱灯光调暗，并且让乘客拉开窗帘。

This is especially so during nighttime departures, cabin lights are dimmed before takeoff.

在夜间起飞期间尤其如此，机舱灯在起飞前会变暗。

From cabin lights to  avionics onboard, APUs have become essential for modern jets.

从机舱灯到机载航空电子设备，APU 已成为现代喷气式飞机必不可少的。

Indeed, it would take a while for people's eyes  to adjust if the cabin lights were on beforehand.

事实上，如果机舱灯事先打开，人们的眼睛需要一段时间才能适应。